Drivers side lock seized up - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

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Old 02-14-2013, 10:46 PM
Killintimetryin Killintimetryin is offline
Junior Member
2005 Chevy TrailBlazer LS
Dark Green Metallic 4.2L I6 2WD
Join Date: Feb 2013
Location: Hawaii
Posts: 2
Drivers side lock seized up

Hi everyone, I am new to this site. I tried to use the search for my problem but couldn't find anything helpful. I have an 05 trailblazer and the drivers side lock won't open using the key, I have to open the passenger door and hit the unlock button on the power locks to open the door. All the power window buttons work from the drivers side, lock unlock button works for the drivers door. It just won't open with the key from the outside.

Has anyone ever had this problem? And how was it repaired?

Thanks a lot, and nice to meet you all!
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Old 02-15-2013, 09:27 AM
Loverotties Loverotties is offline
No longer with us
2002 Chevy TrailBlazer LTZ
Majestic Red Metallic 4.2L I6 4X4
Join Date: Apr 2009
Location: N.Central N.J.
Posts: 2,762
Oh! I answered your other one,but this one says it's "seized" so I'd say try WD-40 and if that doesn't free it up,you need to replace the cylinder.
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Old 02-21-2013, 04:21 PM
PAblzr PAblzr is offline
2002 Chevy TrailBlazer LS
Light Pewter Metallic 4.2L I6 4X4
Join Date: Apr 2006
Location: PA
Posts: 476
Wow. I thought I was the only guy who used a key to open his Trailblazer door!

Loverotties has the solution. If WD-40 by itself does not free your lock cylinder try running a pin or needle into the key hole while spraying to dislodge dirt and gunk.

Still cannot use your key after the WD-40 treatment? Before spending money for a new lock cylinder take the interior door panel off and check that all the linkage is connected and not binding. If you do need a new cylinder the panel has to come off so you will not be wasting any time or effort.
If you see it on the internet it must be true. That's the law isn't it?
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